<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>快速入门升级</title>
</head>
<body>
<!-- 视图 -->
<div id="div">
    <div>姓名：{{name}}</div>
    <div>班级：{{classRoom}}</div>
    <button onclick="hi()">打招呼</button>
    <button onclick="update()">修改班级</button>
</div>
</body>
<script src="js/vue.js"></script>
<script>
    // 脚本
    let vm = new Vue({
        el:"#div",
        data:{
            name:"张三",
            classRoom:"黑马程序员"
        },
        methods:{
            study(){
                alert(this.name + "正在" + this.classRoom + "好好学习!");
            }
        }
    });

    //定义打招呼方法
    function hi(){
        vm.study();
    }

    //定义修改班级
    function update(){
        vm.classRoom = "传智播客";
    }
</script>
</html>